$From :
Starting date for search in YYYY-MM-DDThh:mm:ss format.
$To :
Ending date for search in YYYY-MM-DDThh:mm:ss format.
$Duration :
Overall duration
$Recipients :
Number of recipients
$EmailTotal :
Number of emails
$SmsTotal :
Number of SMS
$Delivered :
Number of delivered messages
$Bounced :
Number of bounced messages
$InProgress :
Number of messages in progress
$Opened :
Number of opened messages
$Clicked :
Number of clicked messages
$Unsubscribed :
Number of unsubscribed messages
$Complaints :
Number of complaint messages
$Inbound :
Number of inbound messages
$ManualCancel :
Number of manually cancelled messages
$NotDelivered :
Number of messages flagged with 'Not Delivered'
$TemplateChannel :
ID number of template used